Richard E. Cunha Director John Ashley Johnny Bruder Actor Sandra Knight Trudy Morton Actor Donald Murphy Oliver Frank, Frankenstein Actor Sally Todd Suzie Lawler Actor Harold Lloyd Jr. Don Actor Felix Locher Prof. Carter Morton Actor Wolfe Barzell Elsu Actor John Zaremba Police Lt. Boyle Actor Robert Dix Police Det. Bill Dillon Actor Harry Wilson The Monster Actor H.E. Barrie Screenwriter George F. Foley Jr. Producer Marc Frederic Producer Meredith M. Nicholson Cinematographer Everett Dodd Film Editing Nicholas Carras Original Music Harry Reif Set Designer